Answer:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
A sex cell that hasn't been fertilized and has left the ovary would come out during the menstrual cycle under normal circumstances.
Answer:
True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.
Answer:
Taq DNA polymerase is an enzyme which can withstand the high temperature as it is resistance to heat therefore is heat stable. This enzyme plays an important role in Polymerase chain reaction as a procedure requires high temperature.
The enzyme was originally isolated from a thermophilic bacterium named <em>Thermus aquaticus</em> near the Lower Geyser Basin of Yellowstone National Park. The Taq word was adapted from the name of the bacteria as<em> T</em><em>hermus </em><em>aq</em><em>uaticus </em>= Taq and polymerase as it poylmerizes the DNA.
